[Alneyan]

Weapon damage does not stack for ships or bases (it should stack for fighters, and possibly satellites). So your weapons will effectively do nothing at all; the same would happen with the Crystalline Armour, and special damage, which is either all or nothing.

In other words, if you are firing APBs dealing 140 damage against a Crystalline vessel able to nullify 149 damage, it will do nothing at all. Likewise, using an Ionic Disperser doing 15 damage will not destroy any engine with a damage resistance of 20kt.